Fireproof blind.



Patented lune II, I90l. W. R. KINNEAR.

FIREPROOF BLIND.

(Application filed Oct. 20, 1900.\

2 Sheets-Sheet l.

(No Model.)

War/mo 2& JQWZ (No Model.)

W. R. KINNEAB.

FIREPBOOF BLIND.

(Applicnion filed Oct. 20, 1900.)

YME "cams warms c0, vuorourno. WASMINGTOI c Patented lune ll, l90l.

2 Sheets-Sheet 2.

Qvwewtoz UNITED; STATES;

PATE T OFFI E.

WILLIAM RAYMOND KINNEAR, OF COLUMBUS, OHIO.

F |REPROOF BLIND.

SPECIFICATION forming part of Letters Patent N 0. 675,953, dated June11, 1901.

Application filed Octoher20,1900. Serial No- 33,744. (No model.)

To all whom it may concern.-

Be it known that 1, WILLIAM RAYMOND KINNEAR, a citizen of the UnitedStates, residing at Columbus, in the county of Franklin and State ofOhio, have invented certain new and useful Improvements in FireproofBlinds; and I do hereby declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appcrtains to make and use the same.

The object of this invention is to provide an improved slat particularlyusefulin constructing fire-resisting curtains.

The invention resides in a slat of sheet metal bent so as to form acavity for the reception of a fire-resisting material and to provideinterlocking tongues and grooves of peculiar construction whereby theslats can be hingedly connected.

In the accompanying drawings, Figure 1 is an oblique perspective view ofa fraction of a curtain or blind composed of such slats, the ends beingin section. Fig. 2 is a similar View of a modified form of the samething, and Fig. 3 is a similar view of a modification.

Referring to Fig. 1, the character 1 denotes the outer piece or part ofthe sheet metal, which is bent to form a pocket or trough, and adownwardly-turned tongue 2 at its upper edge and a downwardly-turnedtongue 3 at its lower edge. 4 denotes the filling, preferably of wood,that is fitted closely in said pocket or trough formed by the piece 1.Upon the inner side of the filling is laid or folded the inner piece ofsheet metal 5. This inner piece 5 has at its upper end an inwardly-bentportion 6, that stands between the tongue 2 of the outer piece and thefilling and serves to brace said tongue and hold the inner piece ofmetal againstthe filling 4:. Theloweredge of the inner piece of sheetmetal 5 is bent down and around the tongue 3 to form a hook or groove 5,and the tongue 3 can have its lower edge bent, as shown at 3", to standacross the bottom of the groove to hold the tongue permanently inposition with respect to said hook or groove. \Vhen the several slatsare thus formed, they can be united by sliding them togetherlongitudinally, the tongue on the upper edge of one slat entering thegroove on the lower edge of another.

A joint thus formed permits the slats to be moved with a hinge-likemovement with respect to each other, and the curtain can be woundcompactly on a roller.

In Fig. 2 the construction is like that shown in Fig. 1, except that theupper edge of the inner piece 5 of the sheet metal is bent toward thepocket, as shown at 5", and the shape of the filling modifiedaccordingly. By this construction the thickness of the curtain isdiminished at the joints between the slats and the bulk of the curtainwhen rolled reduced. Itwillbeentirelypracticabletomake the metalcovering in each slat of one piece of metal, but I now think not soeconomically as here proposed.

The construction shown in Fig. 3 is the same as that shown in Fig. 1,except that the filling and covering therefor have beveled or inclinededges, so that in practice the extreme lower edge of one slat shall lapor project down below the extreme upper edge of the next slat below.This form possesses the advantage of affording a practically continuousfilling throughout the length of the curtain, as well as a more perfectwater-shed. The same results can be secured by making in rabbet form thecontiguous edges of the slats; but I think the form shown in this viewmore economical.

It is understood, of course, that in the views shown the hingejoints areon the inner side of the slat and that the other side is the exposedside or that ordinarily facing the street.

Vhen covering a door or window opening, a curtain formed as hereindescribed possesses not only the advantage of affording great resistanceto the access of fire and heat, and of the latter either by radiation orconduction, but also of being compactible into small space when not inuse.

It is hardlynecessary to add that any suitable means can be provided tosecure the sheet-metal covering to the slat. This can be done byriveting the metal to the filling or by indenting the metal into thefilling. These indentations on the outside of the slat can appear asornamentation, adding greatly to the attractiveness of the curtain.

iVhat I claim, and desire to secure by Letters Patent, is-

1. A slat for fire-resisting curtains, blinds or the like, composed ofan outer piece of sheet metal forming a pocket with downwardly-turnedtongues at its upper and lower edges, an inner piece fitting within andagainst the tongue at the upper edge of the outer piece and formed witha hook at its lower edge extending around the tongue at the lower edgeof the outer piece, substantially as described.

2. A slat for fire-resisting curtains, blinds or the like, composed ofan outer piece of sheet metal forming a pocket with down- Wardly-turnedtongues at its upper and lower edges, an inner piece fitting within andagainst the tongue at the upper edge of the outer piece and formed witha hook at its lower edge extending around the tongue at the lower edgeof the outer piece, said outer piece being also formed on its lower edgeat the outer side to overlap and project below the upper edge of asimilar outer piece, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

WILLIAM RAYMOND KINNEAR. \Vitnesses:

E. S. CAMPRELL, GEORGE M. FINCKEL.

